Construction of novel ternary Au/LaFeO<sub>3</sub>/Cu<sub>2</sub>O composite photocatalysts for RhB degradation via photo-Fenton catalysis

Guan, Sitao; Li, Ruishan; Sun, Xiaofeng; Tang, Xian; Yang, Hua

doi:10.1080/10667857.2020.1782062

Cited by 98 publications

(22 citation statements)

References 65 publications

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“…6d) with characteristic Cu-2p 3/2 binding energy at 932.1 eV and Cu-2p 1/2 binding energy at 952.1 eV. 38 On the S-2p XPS spectrum (Fig. 6e), the peaks at 160.7 eV and 162.1 eV are characterized as the S 2À -2p 3/2 and S 2À -2p 1/2 binding energies, respectively.…”

Section: Resultsmentioning

confidence: 95%

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Photocatalytic Application of Ag-Decorated CuS/BaTiO3 Composite Photocatalysts for Degrading RhB

Wang

Sun

et al. 2021

Journal of Elec Materi

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Herein, binary CuS/BTO and ternary CuS/Ag/BTO composite photocatalysts have been fabricated by anchoring CuS and Ag nanoparticles onto BaTiO 3 (BTO) polyhedra. The as-prepared composite photocatalysts were characterized by means of the techniques of transmission/scanning electron microscopy, x-ray powder diffraction, ultraviolet-visible diffuse reflectance spectroscopy, x-ray photoelectron spectroscopy and photoluminescence spectroscopy. Transient photocurrent and electrochemical impedance spectroscopy measurements suggest that the ternary 5%CuS/(1%Ag/BTO) composite possesses the highest separation efficiency of electron/hole pairs. The photodegradation experiments were conducted by using simulated sunlight as the light source to decompose Rhodamine B in water solution. The 5%CuS/(1%Ag/BTO) and 5%CuS/BTO composites are demonstrated to have the highest and second highest photodegradation activity, respectively. As compared with that of bare BaTiO 3 and CuS, the photoactivity of 5%CuS/(1%Ag/BTO) is increased to 3.3 and 2.0 times, respectively. The electron/hole separation mechanism and the role of localized surface plasmon resonance of Ag nanoparticles in the dye photodegradaton were systematically investigated.

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Section: Resultsmentioning

confidence: 95%

“…A 200-W xenon lamp was used as the sunlight simulator. The procedures for the working electrode preparation and photoelectrochemical measurements were discussed in detail in our previously published papers 38.…”

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confidence: 99%

Photocatalytic Application of Ag-Decorated CuS/BaTiO3 Composite Photocatalysts for Degrading RhB

Wang

Sun

et al. 2021

Journal of Elec Materi

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“…So the presence of Ca 2+ ion on the surface of the doped SCLFCO attracted Cl − in the MB, thereby creating an unbalanced charge which facilitated the breaking of chemical bonds of the methyl groups attached to the chain of the MB molecule. Yang's group (Guan et al, 2020) immobilized LaFeO 3 and Au nanoparticles on the Cu 2 O surface as a ternary composite photocatalyst for rhodamine B degradation. The composite demonstrated a far more photocatalytic degradation performance than bare LaFeO 3 and Cu 2 O.…”

Section: Lanthanum-based Perovskites In Photocatalysismentioning

confidence: 99%

Perovskite Oxide–Based Materials for Photocatalytic and Photoelectrocatalytic Treatment of Water

Nkwachukwu

Arotiba

2021

Front. Chem.

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Meeting the global challenge of water availability necessitates diversification from traditional water treatment methods to other complementary methods, such as photocatalysis and photoelectrocatalysis (PEC), for a more robust solution. Materials play very important roles in the development of these newer methods. Thus, the quest and applications of a myriad of materials are ongoing areas of water research. Perovskite and perovskite-related materials, which have been largely explored in the energy sectors, are potential materials in water treatment technologies. In this review, attention is paid to the recent progress in the application of perovskite materials in photocatalytic and photoelectrocatalytic degradation of organic pollutants in water. Water treatment applications of lanthanum, ferrite, titanate, and tantalum (and others)-based perovskites are discussed. The chemical nature and different synthetic routes of perovskites or perovskite composites are presented as fundamental to applications.

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“… 17 , 18 AOPs are environmentally friendly methods including wet oxidation, 19 photochemical oxidation, 20 electrochemical oxidation, 21 photoelectrochemical oxidation, 22 Fenton oxidation, 23 and photo-Fenton oxidation. 24 AOPs possess common features of the strong standard reduction potential, high bimolecular reaction rate constants, and nonselective reactivity of active radicals, which are beneficial to the rapid and high-efficiency degradation of organic compounds. 25 The reaction of Fenton oxidation is one of the most cost-effective AOPs and was discovered in 1894 by Henry J. Fenton.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Co-Doped Fe₂O₃ Spindles for the Enhanced Photo-Fenton Catalytic Degradation of Tetracycline

Wang

Zhang

et al. 2021

ACS Omega

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Co-doped Fe 2 O 3 spindles with different Co contents were successfully fabricated by a facile one-step hydrothermal method. The crystalline structure, morphology, optical properties, and chemical state of the as-prepared catalysts before and after photo-Fenton reaction were characterized. Co 2+ incorporated into the Fe 2 O 3 lattice was confirmed by the above characterizations. Also, the photocatalytic and photo-Fenton catalytic performances of the samples were evaluated by the degradation of tetracycline (TC) under visible light irradiation in the absence/presence of H 2 O 2 . The results demonstrated that Co-doped Fe 2 O 3 spindles exhibited better catalytic degradation performance in comparison with single Fe 2 O 3 spindles, and the sample of Co(5%)-Fe 2 O 3 spindles displayed the highest activity and best stability. The improvement of photo-Fenton activity might be attributed to two reasons: On the one hand, Co-doped Fe 2 O 3 spindles not only formed the Fe vacancies to reduce the band gap but also could build up an internal electric field, which inhibits electron/hole pair recombination and facilitates the transfer of photoexcited charge carriers. On the other hand, the intrinsic Co 2+ /Co 3+ redox cycling can accelerate the circulation between Fe 2+ and Fe 3+ in Co(5%)-Fe 2 O 3 spindles to facilitate H 2 O 2 consumption and produce more ·OH radicals for TC degradation.

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Construction of novel ternary Au/LaFeO₃/Cu₂O composite photocatalysts for RhB degradation via photo-Fenton catalysis

Cited by 98 publications

References 65 publications

Photocatalytic Application of Ag-Decorated CuS/BaTiO3 Composite Photocatalysts for Degrading RhB

Photocatalytic Application of Ag-Decorated CuS/BaTiO3 Composite Photocatalysts for Degrading RhB

Perovskite Oxide–Based Materials for Photocatalytic and Photoelectrocatalytic Treatment of Water

Fabrication and Characterization of Co-Doped Fe₂O₃ Spindles for the Enhanced Photo-Fenton Catalytic Degradation of Tetracycline

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Construction of novel ternary Au/LaFeO3/Cu2O composite photocatalysts for RhB degradation via photo-Fenton catalysis

Cited by 98 publications

References 65 publications

Photocatalytic Application of Ag-Decorated CuS/BaTiO3 Composite Photocatalysts for Degrading RhB

Photocatalytic Application of Ag-Decorated CuS/BaTiO3 Composite Photocatalysts for Degrading RhB

Perovskite Oxide–Based Materials for Photocatalytic and Photoelectrocatalytic Treatment of Water

Fabrication and Characterization of Co-Doped Fe2O3 Spindles for the Enhanced Photo-Fenton Catalytic Degradation of Tetracycline

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Product

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Construction of novel ternary Au/LaFeO₃/Cu₂O composite photocatalysts for RhB degradation via photo-Fenton catalysis

Fabrication and Characterization of Co-Doped Fe₂O₃ Spindles for the Enhanced Photo-Fenton Catalytic Degradation of Tetracycline